On geodesics in low regularity

C Sämann, R Steinbauer - Journal of Physics: Conference Series, 2018 - iopscience.iop.org
We consider geodesics in both Riemannian and Lorentzian manifolds with metrics of low
regularity. We discuss existence of extremal curves for continuous metrics and present …

NeuMapper: A scalable computational framework for multiscale exploration of the brain's dynamical organization

C Geniesse, S Chowdhury, M Saggar - Network Neuroscience, 2022 - direct.mit.edu
For better translational outcomes, researchers and clinicians alike demand novel tools to
distill complex neuroimaging data into simple yet behaviorally relevant representations at …

A monadic, functional implementation of real numbers

R OConnor - Mathematical Structures in Computer Science, 2007 - cambridge.org
Large scale real number computation is an essential ingredient in several modern
mathematical proofs. Because such lengthy computations cannot be verified by hand, some …

Isometries of relative metrics

P Hästö, Z Ibragimov, H Lindén - Computational Methods and Function …, 2006 - Springer
Isometries of Relative Metrics 1. Introduction Page 1 Computational Methods and Function
Theory Volume 6(2006), No. 1, 15–28 Isometries of Relative Metrics Peter Hästö, Zair …

Remarks on metric transforms and fixed-point theorems

WA Kirk, N Shahzad - Fixed point theory and Applications, 2013 - Springer
It is shown that if a mapping is a local radial contraction defined on a metric space (X, d)
which takes values in a metric transform of (X, d), then for many metric transforms it is also a …

Strong and △-convergence theorems for total asymptotically nonexpansive nonself mappings in spaces

L Yang, FH Zhao - Journal of Inequalities and Applications, 2013 - Springer
The purpose of this paper is to study the existence theorems of fixed points,△-convergence
and strong convergence theorems for total asymptotically nonexpansive nonself mappings …

Fixed point theorems in spaces with applications

H Lu, D Lan, Q Hu, G Yuan - Journal of Inequalities and Applications, 2014 - Springer
In this paper, noncompact CAT (0) versions of the Fan-Browder fixed point theorem are
established. As applications, we obtain new minimax inequalities, a saddle point theorem, a …

The branch set of minimal disks in metric spaces

P Creutz, M Romney - International Mathematics Research …, 2023 - academic.oup.com
We study the structure of the branch set of solutions to Plateau's problem in metric spaces
satisfying a quadratic isoperimetric inequality. In our 1st result, we give examples of spaces …

Geodesics on Riemannian stacks

MDEL HOYO, MDE MELO - Transformation Groups, 2022 - Springer
Metrics on Lie groupoids and differentiable stacks have been introduced recently, extending
the Riemannian geometry of manifolds and orbifolds to more general singular spaces. Here …

Stability of pure nilpotent structures on collapsed manifolds

Z Jiang, S Xu - International Mathematics Research Notices, 2020 - academic.oup.com
The goal of this paper is to study the stability of pure nilpotent structures on an-manifold for
different collapsed metrics. We prove that if two metrics with bounded sectional curvature are …